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http://dx.doi.org/10.5407/JKSV.2011.9.3.044

Study on the Fluid-Surface Characteristics by Using Flow Visualization and Numerical Simulation of Stokes Flow in a Cavity  

Heo, Hyo-Weon (동아대학교 기계공학과 대학원)
Lee, Heon-Deok (동아대학교 기계공학과 대학원)
Jung, Won-Hyuk (동아대학교 기계공학과 대학원)
Cho, Dong-Sik (동아대학교 기계공학과 학부)
Suh, Yong-Kweon (동아대학교 기계공학과)
Publication Information
Journal of the Korean Society of Visualization / v.9, no.3, 2011 , pp. 44-50 More about this Journal
Abstract
In this study, we propose a method for characterizing fluid-mechanical properties of a fluid surface, such as surface dilatational and shear viscosity, by matching the flow visualization and the numerical simulation for a Stokes flow in a three-dimensional cavity. The surface flow is driven by shear stress exerted on the free surface by an external gas flow. The external gas flow is simulated by using a commercial code, while the Stokes flow is calculated by an in-house code. We have found that the surface flow is very sensitive to the surface tension and other properties. The qualitative feature of the surface flow can be reproduced by the parameter tuning.
Keywords
Flow Visualization; Cavity; Dilatation; Viscosity; Surface Tension;
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